Stove.



F. A. NIEBERDING.

STOVE.

APPLlCATION FILED MAR. 14. 1913.

Patented May 30,1916.

3 SHEETS-SHEET l.

.. A. NIEBERDING.

STOVE.

APPLICAHON FILED MAR. 14, 1913.

Patented May 30,1916.

3 SHEETS-SHEET 2- 1 a a a lll llllill'll F. A. NiEBERDlNG.

STOVE.

APPLICATKON FILED MAR. 14, ms.

Patented. May 30,1916

3 SHEETS-SHEET 3- V W i FRANK A. NIEBEBDING, 0F CLEVELAND, OHIO.

ST OVE.

rieaees.

Application filed March 14:, 1913.

To all w 7mm it may concern:

Be it known that I, F RANK A. NIEBERDING, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Stoves, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to stoves or ranges which are used for cooking and baking, and particularly to that type of such stoves or ranges wherein either solid fuel or gas may be burned, as desired. In prevailing stoves of this type with which I am fan'iiliar, the parts required for the burning of one kind of fuel interfere, more or less, with the successful operation of the stove when the other kind of fuel is used. This is especially true as regards the ovens, the efficiency of which is reduced when solfd fuel is used by the presence of the as-burning equipment therebeneath. Moreover, in some of these stoves it requires the removal of certain pieces and the insertion of other parts in order to transform the stove from one burning solid fuel to one in which gas is burned, and vice versa.

It is the object of my invention to provide a stove of this character which is highly efficient; which can be converted from a solid fuel stove to a gas stove by simply inserting a deflector in the bottom of the oven, and which is immediately restored to a solid fuel stove by the removal of the deflector; wherein the parts required for the burning of one kind of fuel donot lessen the ciliciency of the stove when the other kind of fuel is used; and in which air is supplied to the oven burner automatically upon the operation of the gas valve and in proper proportion to the quantity of gas which issues therefrom.

Generally speaking, my invention may be defined as consisting of the combinations of elements set forth in the claims annexed hereto and illustrated in the accompanying drawings forming part hereof, wherein:

Figure 1 is a sectional view of my improved stove or range, the section being taken on the line 1-1 of Fig. 3'; Fig. 2 is a sectional view of the stove at right angles to Fig. 1 and corresponding to the line 2-2 Specification of Letters Patent.

' Patented May so, rare. Serial No. 754,276.

being taken vertically through the oven burner chamber on the line 55 of Fig. 1; F 6 represents a horizontal section through said chamber taken substantially on the line 66 of Fig. 5 and showing the damper which automatically controls the supply of air thereto; and Fig. 7, a View similar to Fig. 6, and illustrating a modified form of the damper.

Like reference characters designate corresponding parts throughout the several views of the drawing.

Mounted upon the base 1 is the casing of the stove, which comprises generally a rectangular bottom plate or wall 2, end walls 3 and i, a front wall 5, a rear wall 6, and a top plate 7. These parts may be joined in any approved manner, common to the class of work to which this invention relates.

A partition or wall 8, which extends from the front wall 5 to the rear wall 6 of the easing, rests upon thev bottom plate or wall 2 and projects upwardly to within a short distance of the top plate 7. A plate 9, which is of the same width as the partition 8, joins the top edge thereof at right angles and eX- tends horizontally therefrom to within approximately the same distance from the end wall 4 as the top of the partition 8 is spaced from the top plate 7. 1A plate 10, which is of substantially the same area as the plate 9, joins the partition 8 near its lower edge and extends therefrom toward the end wall 1 in a plane parallel to the plate'9. The

ends of the plates 9 and 10 are joined by a plate 11 of like width. The partition or wall 8, the plates 9, 10, and 11 and the front and rear walls 5 and 6, respectively, comprise the walls of the oven A.

In the upper portion of the space provided between the wall 3 and partition 8, and supported upon flanges 12 and 13 which are secured to said Wall and partition directly opposite each other, is the grate 14, above which is located the combustion chamber' B for solid fuel, said chamber being provided with the usual liner 15, of fire brick or other such material. Beneath the grate 14 is the ash pit C.

A flue E is provided for the stove by the L-shaped shell 20, which is secured to the rear wall 6 of the casing. T he lower end of thisflue communicates, through a hole2l in said wall, with the space beneath the plate 10, and this space communicates with the combustion chamber B through a passageway D produced by the spacing of the plate 11 from the wall 4 and the plate 9 from the top plate 7. Thus it will be seen that the products of combustion from the chamber B are entrained about the walls of the oven A through the passageway D before they escape to the flue E. This is in accordance with the practice usually followed in the construction of solid fuel stoves, and it will be seen from the construction illustrated in the drawings that there is nothing to hinder in the slightest degree the-operation of my stove as a stove of this type.

An angular trough-shaped casing 25 is secured to the underneath surface of the top plate 7 and extends across its right hand end and along a portion of its front. \Vithin this casing are contained the gas burners 26 for the top of the stove. These burners receive gas from the supply pipe 27 through tubes 28, mixers 29, and valves 30. A plate -31, which corresponds in shape to the casing 25, rests therein )IlSt above the upper surface efttthe burners 26 and is provided with an opening 32 for each of the burners 26, the opening being of substantially the same "fshh-pe as the burner. An upwardly extending flange 33 which surrounds the plate 31 bears upon the inner surface of the casing 25 to retain the plate in position.

The front wall-pf. the casing 25 is slotted to accommodate thetubes 28 and to provide an air supply fortheburiiers 26. An extension 25*, which is carried by the inner wall of the casing 25, provides an auxiliary flue which has communication with the interior of the casing through openings 25".

The majority of the openings 25 are in proximity to the burners farthest removed from the exit end of the casing 25. The flue and the interior of the casing 25 communicate directly with the fine (3 (which is provided by the horizontal arm 35 of the shell 20) through a hole 34 in the rear wall 6 of the stove; and by'reason of the arrangement above described, a part of the products'of combustion from the front burners escape through the auxiliary flue to the flue e, and the draft created by these burners is thus prevented from interfering ,..with the GillClOYlCY of the rear burner.

A damper-36, may be hinged within the flue c to close it off from the main flue E when the stove is being'heated by solid fuel.

A wall or partition-37, which is spaced one of their edges.

it above an elongated openin or slot 38 formed therethrough above the plate 10 which forms the bottom wall of the oven. This slot 38 extends substantially the full width of the partition 8. Supported within the combustion chamber F thus formed is a gas burner 40, having connection with the gas supply pipe- 41 through the tube .42, mixer 43, and valve 44.

Openings 45, which are formed in the bottom plate 2 of the stove casing, are controlled by dampers 46. These dampers are in the form of cover plates or doors, and are provided with lugs 47 which overhang The squared shaft 48 passes through correspondingly shaped holes in the ears 47 and is journaled at its rear end in a lug 49 which projects upwardly from the plate 2. Upon the forward end of this shaft is secured a cam plate 50 which is adapted to cooperate with a finger '51 secured to the lower end of the valve stem 52 of the valve 44. The cam 50 is of a shape that will cause a partial rotation of the squared shaft 48 when the said cam is actuated by the finger 51. From the construction of these parts, it will be seen that I automatically supply the required quantity of air to the oven burner simultaneously with the operation of the valve which supplies the gas thereto.

Diagonally opposite that corner of the oven which is provided with the slot 38 is a plate 60, which extends from the plate 9 to the plate 11 substantially at an angle of 45 and from the front wall to the rear wall of the oven. Between said plate 60 and the corner of the plates 9 and 11 is a fine G, which communicates at its rear end with the fine a through a triangular hole 61 in the wall 6. The central portion of the plate (30 is cut away in order that the, interior of the oven may have communication with the flue G, and the opening thus formed between the oven and the'flue is adapted to be closed by a slide damper 2 which has holes (33 adapted to register with holes 64 in a stationary plate (35. The plate (32 is movably attached to the plate ()5 by screws 66 which project from the latter through slots ()7 in the plate (32.

Pivoted at (38 to the plate 11, a short distance below the central portion of the plate (32, is a lever (39, which is bent outwardly at its upper end to conform to the inclination of the plate (50 and which terminates in a fork which embraces a pin located at the center of the plate 62. The lower end of the lever-69 is curved rear-wardly and enlarged to provide a weight 71.

Carried by the partition 8 and extending messes the ledges 7 2 and 73. The deflector plate 77 is coextensive with the bottom of the oven and its front and rear edges are turned down a sufficient distance to engage the plate 10 and support the deflector plate in a transverse direction. A fin 76 is carried by and above that channel 74: which embraces the ledge 73 for a purpose which will be mentioned hereinafter. lhe central portion of the plate 77 is cut away to provide an open ing 78 therethrough, and a part of the material cut from said opening is turned downwardly to meet the surface of the late 10, as shown at 7 9. Surmounting the p ate 77 is a baffle plate 80 which is spaced from the former plate, by its downturned ends 81, a proximately the same distance as the plate 7 is elevated above the oven bottom. lhis plate 80 extends substantially from the front to the rear of the deflector plate 77, but is somewhat narrower in order to provide an un bstructed passage for the products of combustion which are directed from the burner 40 about its edges through the passageway a. beneath the plate 80, the holes 7 8, and the passageway a beneath the deflector plate 77. The weight 71 on the lower end of the lever 09 (which has been previously mentioned) normally hangs a slight distance below the ledge 73, and is adapted to be entill . gaged by the in 7 6 and swung upon its pivot 68 to move the slide damper 62 into open position as the deflector is mserted into the oven. When the deflector IS in place, the

weight 71 rests upon the upper surface of the fin 76 and retains the slide damper 62 in its open position. This provides an escape for the products of combustion which were introduced into the oven in the manner previously set forth. lln the absence of the deflector, the ledges 72 and 73 support the shelf which is indicated in the drawing by dotted lines, as resting upon the upper flanges of the channels 741'.

lln Fig. 7 l have shown an alternative form of damper for controlling the supply of air to the burner or combustion chamber )5 which comprises a slide plate 85 having holes 86 throughout its length, which are adapted to be brought into register with holes 87 in the bottom plate or Wall 2 of the stove easing when movement of the plate is elected by the operation of the valve 44*, the stem of said valve having connection with the slide plate 85 through a finger 51" which is provided near its end with a pin which occupies the transverse slot88 in the end of the slidezplate.

The even A, the cmnbustion chamber B,

and the ash pit C may be provided with suitable doors which may be hinged to the front wall 5 of the stove casing inthe usual manner, the door for the oven being shown at in. Fig.

From the foregoing description, it will be seen that I provide a cooking and baking stove or range in which either solid fuel,

such as coal, or gas may be used as the heatproducing medium; one which will operate as well with one form of fuel as the other, and which may be converted from a solid fuel stove to a gas stove by simply inserting a member or deflector into the bottom portion of the oven. This operation, it will be remembered, automatically opens the damper which provides a vent for the oven, and the turning on of the gas for the oven burner opens the damper which supplies air to said burner in the desired quantity to promote proper combustion, and to the oven to create a proper circulation thercthrough. A greater quantity of air than that required for the amount of gas being used would unduly lower the temperature of the oven and result in an extravagance of gas. When it is desired to burn coal or wood in the stove, the member or deflector is removed from the oven, the weighted lever (39 swings to its normal position and shifts the damper plate 62 to its closed position, and since the dam per in the bottom of the burner chamber 1* is closed when the gas valve is turned off, the stove is in readiness for operation.

Having thus described my invention, what I claim is 1. A stove comprising a casing lmving end, front and rear walls and top and bottom plates, and inclosing an oven, and a combustion chamber and ash pit at one side thereof and a passageway extending across the top, down the opposite side and under neath the oven, the front and rear walls of the casing forming the corresponding walls of the oven, an. l -sh'apcd shell secured to the rear wall, one arm of which provides a flue for the passagmvay beneath the oven, a. trough-shaped casing secured to the under neath surface of the top plate, the interior of which commimieates with the flue in the other arm of the aforesaid shell and having burners therein, a chamber at that side of the oven adjacent the ash pit and com1mmieating with the oven through an opening in its side wall, a burner within said chamber, a. flue for the oven conmiunicating with the last mentioned line, and a deflector in the oven above the aforesaid opening.

A stove comprisimg a casing having end, front and rear wallsand top and bottom plates and inclosing an oven, and a combustion chamber and ash pit at one side thereof and a passageway extending across the top, down the opposite side and underneath the oven, the front and rear walls of the casing forming the corresponding walls of the oven, a chamber at that side of the oven adjacent the ash pit and communicating with the oven through an opening in its side wall, the bottom of the chamber being formed by the bottom plate of the stove casing and said plate having holes for the admission of 'air to said chamber, a burner within said chamber having a valve, a damper for said holes, and a flue for the oven located diagonally opposite the afore= said opening.

3. A stove comprising a casing inclosing an oven, a combustion chamber, an ash pit and a passageway which extends across the top, down one side and underneath the oven;

the front and rear walls of the casing forming the Corresponding walls of the oven, a time for the passageway beneath the oven, a chamber at that side of the oven opposite the side down which the passageway extends and I deflector in the oven I and through the opening therein,

communicating opening in its with the oven through an side wall, holes for the admission of air to said chamber, a burner within said chamber having a valve, a damper for said holes, a flue for the oven, a above the aforesaid opening and comprising a plate which is coextensive with the bottom of the oven and spaced thereabove by its downturned ends, there being an opening in the central portion of the plate, a second plate 'surmounting the first mentioned plate and extending from the front to the rear thereof, but stopping short of its lateral edges, whereby the products of combustion from the .oven burner are directed beneath the first mentioned plate beneath the second mentioned plate and around its lateral edgesto the upper portion of the oven, from whence they are permitted to escape through the oven flue.

4. The combination with a coal range, of

a wall arranged in the ash .pit and forming a chamber extending from the front to the rear beside the oven, the oven wall adjacent to said chamber having an elongated opening therethrough placing said chamber in communication with the interior of the'oven, a burner in said chamber, and a member extending across the oven just above said opening.

5. The combination with a coal range, of a partition extending laterally and downwardly in the ash pit from the lower portion of the oven wall to the bottom wall of the range to form a combustion chamber at the adjacent lower corner of the oven, the

oven wall having an elongated opening therethrough at the top of said chamber, a burner in said chamber, and a member extending across the oven above said opening and adapted to direct the combustion gases along the bottom of the oven. 6. The combination with a coal range, of a chamber formed by partitioning off the lower inner corner of the ash pit, the adjacent wall of the oven having an elongated opening therethrough into the upper end of said chamber, a burner in said chamber, and means for causing hot combustion gases from saidchamber to flow into the oven and. across the bottom thereof to points remote from said opening.

7. The combination with a coal' range, of a combustion chamber formed out of the lower corner of the ash pit adjacent to .the oven, there being an opening leading from the upper portion of the chamber into the oven just above the ovenjbottom, and a plate supported within the ovenso as to lie in a plane just above the top of said opening, said plate extending almost entirely across the oven so as to direct the hot gases from said chamber along the bottom of the oven before they rise.

S. The combination with a coal range, of a combustion chamber formed out of the lower i corner of the ash pit adjacent to the oven, there being an opening leading from the upper portion of the chamber into the oven just above the bottom of the oven, and means arranged within the oven for causing the combustion gases entering theoven through said opening to flow along the bottom of th e.95

,oven to the sides thereof before rising toward the top of the oven.

9. In a combined coal and gas ra'nge, anr even having an elongated opening extending through the wall into the ash pit adjacent to the bottom of the oven, an outwardly an downwardly curved wall extending from the top of said opening to the bottom of the ash pit and forming a combustion chamber, and means ar 'anged within the oven for causing the combustion gases entering the'. oven through said opening to flow along the bottom of the oven to the sides thereof before rising tov ard the top of the oven.

In testimony whereof, I hereunto afiix my 110 signature in the presence of two witnesses.

J. B. HULL, BRENNAN B. lVEs'r. 

